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Chapter 4 - Best Management Practices for Erosion and Sediment Control <br /> 4. 04 CONSTRUCTION ROAD STABILIZATION <br /> ( ES BMP 1 . 02) <br /> Definition <br /> The temporary stabilization of access roads , subdivision roads , parking areas , and other <br /> on-site vehicle transportation routes with stone immediately after grading . <br /> Purposes <br /> 1 . To reduce the erosion and degradation of temporary roadbeds by construction <br /> traffic, especially during wet weather. <br /> 2 . To reduce the erosion and minimize regrading of permanent roadbeds between the <br /> time of initial grading and final stabilization . <br /> Conditions Where Practice Applies <br /> Wherever stone-base roads or parking areas are constructed , whether permanent or <br /> temporary, for use by construction traffic. <br /> Planning Considerations <br /> Areas which are graded for construction vehicle transport and parking purposes are <br /> especially susceptible to erosion . The exposed soil surface is continually disturbed , <br /> leaving no opportunity for vegetative stabilization . Such areas also tend to collect and <br /> transport runoff waters along their surfaces . During wet weather, they often become <br />.. muddy quagmires which generate significant quantities of sediment that may pollute <br /> nearby streams or be transported off-site on the wheels of construction vehicles. Dirt roads <br /> can become so unstable during wet weather that they are virtually unusable . <br /> Permanent roads and parking areas should be paved as soon as possible after grading . <br /> However, it is understandable that funds for this purpose may not be available in the early <br /> phases of the development project. As an alternative , the early application of stone may <br /> solve potential erosion and stability problems and eliminate later regrading costs . <br /> Immediate stabilization of such areas with stone may cost more money initially, but it may <br /> actually save money over the life of the project by increasing the usefulness of the road <br /> during wet weather. Some of the stone will also probably remain in place for use as part of <br /> the final base course of the road , thereby offsetting the initial expenditure . <br /> 4-11 <br />